The mole is defined as the number of atoms in exactly 12 gg of carbon-12. The mole equals 6.022×10236.022×1023 items of whatever you are counting. This number is also called Avogadro's number, after Amadeo Avogadro (1776–1856). Molar mass is the mass of 1 molmol of atoms of an element; for compounds, molar mass is the mass of 1 molmol of molecules or formula units. Molar mass can be used to convert mass to moles for any element or compound. How many water molecules are in a block of ice containing 2.00 molmol of water (H2OH2O)?

Q: A piece of iron weighting 85.65 g was burned in air. The mass of the iron oxide produced was  118.37…

A: GIVEN: Mass of iron = 85.65 g Mass of iron oxide produced= 118.37g To Calculate: The empirical…

Q: moles of H₂O

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Q: What mass of carbon dioxide is produced from the complete combustion of 6.80×10−3 gg of methane?…

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Q: If 6.1 × 10²⁵ molecules of CO₂ are produced in a combustion reaction, what is the mass in kg of CO₂…

A: Given: 6.1 × 10²⁵ molecules of CO₂ are produced in a combustion reaction.  To determine : The mass…

Q: The foul odor of rancid butter is due largely to to butyric acid, a compound containing carbon,…

A: 1) Given, Butyric acid, a compound containing carbon, hydrogen, and oxygen.  mass of sample = 4.30 g…

Q: A certain gasoline additive that boosts the octane rating of gasoline is made of the elements C, H,…

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Q: Calculate the mass in grams of 1.90×10241.90×1024 molecules of Butane, C4H10.

A: Given:  Molecules of butane =1.90×10241.90×1024 molecules Standard data: The molar mass of butane…

Q: Avogadro's number is the number of particles in one mole (6.022 x1023 particles = 1 mol). How many…

A: Inorder to calculate the number of molecules of water in 4.5 mol sample of sodium chloride, we first…

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg3(Si2O5)2(OH)2 An…

A: Given: chemical formula of the talc. To find : Total number of moles of oxygen in the sample.…

Q: How many CO2 molecules are there in 12.0 moles CO2?   How many moles NH3 contains 1.5 x 10 23 NH3…

A: a) Given : Number of moles of CO2 = 12.0 mol.

Q: Fermentation is a complex chemical process of wine making in which glucose is converted into ethanol…

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Q: Ascorbic acid is one form of vitamin C and is known to contain only carbon, hydrogen, and oxygen.…

A: Given,  The mass percent of Carbon = 40.91%  Hydrogen = 4.578% and Oxygen = 54.50% The mass of the…

Q: For the following reaction, 10.7 grams of phosphorus (P4) are allowed to react with 39.6 grams of…

A: Given, The mass of P4 = 10.7 g. The mass of Cl2 = 39.6 g. The molecular mass of P4 = 123.8 g/mol.…

Q: how many moles are 3.604 x 10^24 molecules of Co(NO3)2

A: Moles is defined for the quantity. Mole is the correct term to define number of atoms ,…

Q: The reaction of 7.71 x 103 g of titanium (IV) chloride gas with 1.45 x 103 g of oxygen gas produces…

A: Titanium chloride reacts with oxygen to give titanium oxide and two moles of chlorine gas.

Q: How many molecules are in 4.83×1020 H2O2?   I don't quite understand how to do these calculations. I…

A: Note: Hey there! Thank you for posting the question. Since the unit is not given, we have taken…

Q: How many moles are there in 4.31 × 10¹2 molecules of sucrose C12H22011? (1 mole = 6.022 x 1023…

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Q: Calculate the mass in grams of 3.07×10243.07×1024 molecules of propane. The chemical formula for…

A: Given that : The number of molecules of propane = 3.07×1024 The chemical formula for propane is…

Q: If i have the chemical equation Mg(s) + 2HCl(aq) ⟶ MgCl2(aq) + H2(g), how would I find the moles of…

A: We have given that  the balanced chemical equation :                    1Mg(s) + 2HCl(aq) →…

Q: Calculate the mass in grams of 6.12 mole Cu(NO3)2.

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: How many moles of H2O can be formed from 1.60 × 1023 molecules of NH; from the following equation? 4…

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Q: The formula of acetic acid is CH3COOH (alternatively written as C₂H4O₂). What is the molar mass of…

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Q: According to the following reaction, how many moles of chlorine gas are necessary to form 0.452…

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Q: Calculate the maximum mass in grams of nitrogen dioxide, NO2 (46.00 g/mol), that can form when 3.49…

A: A numerical problem based on mole concept that is to be accomplished.

Q: Methanol can be formed by the following UNBALANCED equation below. What is the mass in grams of…

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Q: The chemical formula for chlorophyll is C₅₅H₇₂MgN₄O₅. Given the molar mass of the compound is 893.49…

A: Given, mass of C₅₅H₇₂MgN₄O₅. = 1.501 g Molar mass of C₅₅H₇₂MgN₄O₅. = 893.49 g/mol  Number of moles =…

Q: Assuming complete reaction, how many moles of HCl(g) can be produced from 0.100 mol of Cl2(g)?

A: H2(g) + Cl2(g) ----> 2HCl(g)  given :- 0.100 mol Cl2(g)  To calculate :- number of moles of…

Q: Minerals in soils and soil amendments (e.g., fertilizers) are described by formula units that…

A: To calculate: What is the mass in grams of 0.518 moles of calcium carbonate (CaCO3)?

Q: A compound contains 1.65 x 10 23 atoms of carbon, 0.552 g of hydrogen and 4.39 g of oxygen, what is…

A: Given: 1.65*1023 atoms of carbon 0.552 g of hydrogen 4.39 g of oxygen

Q: A given sample of Xenon flouride compound contains molecules of the same type XeFn where n is some…

A: Chemical formula which shows number of chemical elements and total element’s number available in…

Q: Gaseous hydrogen and oxygen can be prepared in the laboratory from the decomposition of gaseous…

A: The balance chemical reaction :  2H2O(g) ---> 2H2(g) + O2(g)  Mass of water = 14.6 g  Mass of O2…

Q: Calculate the molar mass of lead(II) nitrate, Pb(NO3)2(s)

A: The molar mass is the sum of masses of all the atoms present in compound.

Q: Peroxyacylnitrate (PAN) is one of the components of smog. It is a compound of C, H, N, and O.…

A: Since the total % of all the 4 atoms present in the compound should be = 100 %  Hence % of C + % of…

Q: Caffeine, an extremely popular chemical amongst students and teachers alike, is composed of four…

A: Given, carbon  49.48 % hydrogen  5.19 % nitrogen 28.85 % oxygen  16.48 %

Q: When aluminum metals reacts with HCl(aq), the products formed are AlCl3(aq) and hydrogen. If 6.477…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: For the reaction P4010(s) + 6H₂O(l) → 4H3PO4(aq), what mass (in gram) of P4010 must be consumed if…

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Q: calculate the fraction of methane in the mixture.

A: Given: The mass of mixture of methane CH4 and ethane C2H6=13.43 g The total mass of CO2 and…

Q: In a first expirement, a compound is analyzed and found to contain 85.63% C and 14.37% hydrogen by…

A: 1. atom % in samp;e mole Mole ratio (divided by smallest number of moles) C 85.63 85.63 /12 =…

Q: The chemical formula for chlorophyll is C55H72MN4O5. Given the molar mass of the compound is 893.49…

A: Here given molar mass of chlorophyll is ---- 893.49 g We know--- 1 mole chlorophyll molecule = 6.032…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".